When ego and not competence drives what we undertake, we have blind spots. If you know what you understand, you know where you have an edge over others. When you are honest about where your knowledge is lacking you know where you are vulnerable and where you can improve. Understanding your circle of competence improves decision$-$making and outcomes. Answer choices: Occam's Razzor, Inversion, First Principles thinkning, the map is not the territory, second$-$order thinking, circle of competence, hanlon's razor, thought experiment, probilistic thinking